commit 261fb61a8bf6d3bd964ae6f1e6af49585d30db51
author KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Wed Sep 23 15:56:33 2009 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Sep 24 07:20:58 2009 -0700
tree 417cebd2e18bc2457b5b09d8359ad71ba6afd56d
parent 4b3bde4c983de36c59e6c1a24701f6fe816f9f55

memcg: add comments explaining memory barriers

Add comments for the reason of smp_wmb() in mem_cgroup_commit_charge().

[akpm@linux-foundation.org: coding-style fixes]
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>